Finding the Fourth Proportional to 11,398,448.40, 15,729,386.40 and 6,241,721.10
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Solution
The fourth proportional to 11,398,448.40, 15,729,386.40 and 6,241,721.10 is: 8,613,316.44
Step by Step Solution
- Step 1: Write the proportion equation
11,398,448.40 : 15,729,386.40 = 6,241,721.10 : x - Step 2: Convert to fraction form
11,398,448.40/15,729,386.40 = 6,241,721.10/x - Step 3: Cross multiply
11,398,448.40x = 15,729,386.40 × 6,241,721.10 - Step 4: Simplify right side
11,398,448.40x = 98,178,442,982,933.03 - Step 5: Solve for x
x = 98,178,442,982,933.03/11,398,448.40 - Step 6: Final answer
x = 8,613,316.44
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.